1.
Indian J Biochem Biophys
;
1983 Oct; 20(5): 263-6
Article
in English
| IMSEAR
| ID: sea-26528
2.
Indian J Biochem Biophys
;
1982 Aug; 19(4): 292-4
Article
in English
| IMSEAR
| ID: sea-27794
Subject(s)
Animals , Cattle , DNA , Nucleic Acid Denaturation , Polyamines , Polymers , Thymus Gland
3.
J Biosci
;
1982 Mar; 4(2): 127-132
Article
in English
| IMSEAR
| ID: sea-160125
ABSTRACT
A novel polycationic ionen was synthesized and fractionated on carboxymethyl- Sephadex using a salt gradient in 7M urea. A series of oligomers of discrete length were characterised by ultraviolet spectra. The ultraviolet spectra of oligomers revealed a new band centred at 232.5 nm which was probably due to exciton splitting. Thermal denaturation studies indicated both stabilization of the helix conformation and a higher degree of cooperativity in the melting of DNA (oligomers)n complex as compared to native calf thymus DNA. Ionen oligomers exhibited large extrinsic Cotton effect at 232.5 nm which could be attributed to exciton interaction.
4.
Indian J Biochem Biophys
;
1981 Apr; 18(2): 157-8
Article
in English
| IMSEAR
| ID: sea-27432